FactuGES_ERP/modules/customers/src/api/application/services/customer-finder.ts

import type { Criteria } from "@repo/rdx-criteria/server";
import type { UniqueID } from "@repo/rdx-ddd";
import type { Collection, Result } from "@repo/rdx-utils";
import type { Transaction } from "sequelize";

import type { Customer } from "../../domain";
import type { CustomerListDTO } from "../dtos";
import type { ICustomerRepository } from "../repositories";

export interface ICustomerFinder {
  findCustomerById(
    companyId: UniqueID,
    invoiceId: UniqueID,
    transaction?: Transaction
  ): Promise<Result<Customer, Error>>;

  customerExists(
    companyId: UniqueID,
    invoiceId: UniqueID,
    transaction?: Transaction
  ): Promise<Result<boolean, Error>>;

  findCustomersByCriteria(
    companyId: UniqueID,
    criteria: Criteria,
    transaction?: Transaction
  ): Promise<Result<Collection<CustomerListDTO>, Error>>;
}

export class CustomerFinder implements ICustomerFinder {
  constructor(private readonly repository: ICustomerRepository) {}

  async findCustomerById(
    companyId: UniqueID,
    customerId: UniqueID,
    transaction?: Transaction
  ): Promise<Result<Customer, Error>> {
    return this.repository.getByIdInCompany(companyId, customerId, transaction);
  }

  async customerExists(
    companyId: UniqueID,
    customerId: UniqueID,
    transaction?: Transaction
  ): Promise<Result<boolean, Error>> {
    return this.repository.existsByIdInCompany(companyId, customerId, transaction);
  }

  async findCustomersByCriteria(
    companyId: UniqueID,
    criteria: Criteria,
    transaction?: Transaction
  ): Promise<Result<Collection<CustomerListDTO>, Error>> {
    return this.repository.findByCriteriaInCompany(companyId, criteria, transaction);
  }
}